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  A solution is one molar in each of NaCl,CdCl2,ZnCl2,PbCl2. To this Tin metal is added. Which of the following is true?                        A.     Sn can reduce Na+ to Na   B.    Sn can reduce Zn2+ to Zn   C.     Sn can reduce Cd2+ to Cd   D.    Sn can reduce Pb2+ to Pb  
Asked by s.ojaswini17 | 14 Feb, 2019, 08:45: PM
answered-by-expert Expert Answer
With Increase in reduction potential value (-Ered) the reducing property of metal also increases.
 
Since Sodium has highest reuction potential value it cannot be reduced with any other metal mentioned in the question.
 
The only suitable option is "d". i.e lead can easily be reduced by tin since lead has lower (-Ered) value than Sn (Tin). 
Answered by Sumit Chakrapani | 15 Feb, 2019, 02:10: AM

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